Get him something like a Volt. Even though it's a cig-a-like it fires at 3.6volts so it will pack more of a punch than a standard cig-a-like. Or an eGo twist wouldn't be bad as they're like the size of a cigarillo. He should be more concerned with his health than of what people think of him. The guy that posted several times on this thread earlier, named "LongHaul" is infact...a long haul trucker. You could PM him for some advice since he is in the same situation and could give pointers on convenient "road accessable" gear.